There are many loopholes in the rules. The ones where you make it impossible for yourself to follow the rules ("anti-loopholes"?) seem the least worrisome.

I'm surprised no one has pointed out that you can lie: when your opponent guesses your set, change it to something that's consistent on the sequences classified so far.

I was serious about practicing being reasonable as well as reasoning. It's kind of sad that no one seems to care about that.